CVE-2026-28461
OpenClaw versions prior to 2026.3.1 contain an unbounded memory growth vulnerability in the Zalo webhook endpoint that allows unauthenticated attackers to trigger in-memory key accumulation by varying query strings. Remote attackers can exploit this by sending repeated requests with different query parameters to cause memory pressure, process instability, or out-of-memory conditions that degrade service availability.
- Score
- CVSS 4.0 8.7 High
- Status
- Analyzed - disclosure@vulncheck.com
- Published
- 2026-03-19
- Last modified
- 2026-06-23
- Weaknesses
- CWE-770
Affected products
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-wr6m-jg37-68xh
- https://www.vulncheck.com/advisories/openclaw-unbounded-memory-growth-in-zalo-webhook-via-query-string-key-churn
